One of the "world's worst weeds" that can threaten drinking water supplies and clog irrigation channels has been discovered in Darwin. Amazon frogbit is a fast-growing, floating aquatic plant that can ...

Biosecurity experts are warning an aggressive, invasive weed available for sale online for as little as $5 as an ornamental aquarium plant is spreading and causing concern for the state's waterways.

A dangerous new threat to Australia's water systems is emerging in the Northern Territory. Amazon frogbit, an aggressive weed, has been discovered near Darwin, where it is clogging irrigation channels ...